CN209240240U - A reusable mold for prefabricated anti-skid strips for stairs - Google Patents

Abstract

The utility model relates to a reusable mold for prefabricated stair anti-slip strips, which comprises long mold strips made of polytetrafluoroethylene, and the middle part of an upper surface of the mold strips is evenly spaced along its length direction with multiple mold strips. Each groove is provided with a powerful magnet, and a number of countersunk screw holes are provided on the powerful magnet. The bottom of the groove is provided with screw holes corresponding to the countersunk screw holes one by one. The powerful magnet is connected to the The countersunk screw holes and the countersunk bolts in the corresponding screw holes are fixed in the grooves. The beneficial effect is: the mold strip is made of tetrafluoroethylene colloid, and its surface is smooth and not bonded to concrete, so that the demoulding can be realized smoothly, and the quality of the anti-slip strip installation groove formed on the surface of the prefabricated staircase is guaranteed to be better; the mold is fixed by using a powerful magnet Strips can realize the reusability of molds, thereby reducing costs; separating the molds at the anti-skid strips makes the mold making of stairs more convenient, more standardized, and further reduces costs.

Description

A reusable mold for prefabricated anti-skid strips for stairs

technical field

The utility model belongs to the field of prefabricated buildings, in particular to a reusable mold for prefabricated stair anti-slip strips.

Background technique

In prefabricated buildings, prefabricated stairs are formed by casting molds. During the use of existing staircase casting molds, secondary treatment is required on the surface of the stairs, especially on the anti-skid strips, resulting in time-consuming, laborious and cost-intensive processes. technical problem. Some stair molds are treated at the position of the anti-slip strip by welding multiple angle irons on the inside of the stair side formwork. This method will cause difficulty in demoulding. The surface of the stair is easily damaged during demoulding, which will affect the appearance, so it needs to be improved.

Utility model content

The technical problem to be solved by the utility model is to provide a reusable prefabricated stair anti-slip mould, which aims to overcome the shortage of a suitable mold for the position of the prefabricated stair anti-slip in the prefabricated building in the prior art.

The technical scheme of the utility model for solving the above-mentioned technical problems is as follows: a reusable mold for prefabricated stair anti-skid strips, which includes a strip-shaped mold strip made of polytetrafluoroethylene, an upper surface of the mold strip The middle part is evenly spaced with a plurality of grooves along its length direction, each of which is provided with a powerful magnet, and a number of countersunk screw holes are provided on the powerful magnet, and the groove bottom of the groove is provided with a The countersunk screw holes correspond to the screw holes one by one, and the powerful magnet is fixed in the groove by the countersunk bolts that are threadedly connected to the countersunk screw holes and the corresponding screw holes.

On the basis of the above technical solutions, the utility model can also be improved as follows.

Further, the mold bar is in the shape of a triangular prism, and its upper surface is one of its three rectangular surfaces.

The advantage of adopting the above-mentioned further structural improvement is that the structure is simple, and the shape of the anti-skid strip groove formed after pouring and demoulding is convenient for the installation of the existing anti-skid strip.

Further, the cross section of the mold bar is an equilateral triangle.

The advantage of adopting the above-mentioned further structural improvement is that it is convenient for processing and production.

Further, the powerful magnet is in the shape of a cuboid, and one surface thereof is flush with the rectangular surface of the mold bar on which the groove is provided.

The advantage of adopting the above-mentioned further structural improvement is that it is convenient for the strong magnet to abut against the lower surface of the iron floor formwork, so that the mold strips can be better sucked and fixed.

Further, the number of the countersunk screw holes on each of the powerful magnets is 2 to 4.

The advantage of adopting the above further structural improvement is that the strong magnetic block is more firmly fixed in the groove.

Further, the length of the mold bars is 1.2-1.5m, and 4-12 of the powerful magnets are evenly spaced on each of the mold bars.

The advantage of adopting the above-mentioned further structural improvement is that the mold strips are better fixed on the lower surface of the floor formwork and the usage of powerful magnets is saved, which saves costs.

Compared with the prior art, the beneficial effects of the utility model are:

1. The mold strip is made of tetrafluoroethylene colloid. Its surface is smooth and does not bond with concrete, so it can be demoulded smoothly and ensures that the quality of the anti-skid strip installation groove formed on the surface of the prefabricated stairs is better;

2. Use strong magnets to fix the mold strips, which can realize the reusability of the molds, thereby reducing costs;

3. Separate the mold at the anti-skid strip to make the mold making of the stairs more convenient and standardized, and further reduce the cost.

Description of drawings

Fig. 1 is a cross-sectional view perpendicular to its length direction of a reusable prefabricated stair anti-skid strip mold provided by the utility model;

Fig. 2 is the top view schematic diagram of the prefabricated stair anti-skid strip mold shown in Fig. 1;

Fig. 3 is the schematic diagram when the prefabricated stair anti-skid strip mold shown in Fig. 1 is installed on the lower surface of the stair formwork after pouring is completed and then demoulded;

Fig. 4 is an enlarged view of the part encircled by the dotted line in Fig. 3, the mold bar is adsorbed to the lower surface of the iron stair formwork by the powerful magnet on its upper surface.

In the accompanying drawings, the list of parts represented by each label is as follows:

1. Mold bar; 2. Powerful magnet; 3. Countersunk head bolt.

Detailed ways

The principles and features of the present utility model are described below in conjunction with the accompanying drawings and specific embodiments. The examples given are only used to explain the present utility model, and are not used to limit the scope of the present utility model.

As shown in Figures 1 to 4, the utility model provides a reusable prefabricated stair anti-skid strip mold, which includes a strip-shaped mold strip 1 (such as a long triangular prism) made of polytetrafluoroethylene, so that The middle part of a rectangular surface of the mold bar 1 is provided with a plurality of grooves evenly spaced along the axial direction, and each of the grooves is provided with a powerful magnet 2, and the powerful magnet 2 is provided with a number of countersunk screw holes. The groove bottom of the groove is provided with screw holes corresponding to the countersunk screw holes one by one, and the powerful magnet 2 is fixed on the in the groove.

Further, the cross section of the mold bar 1 is an equilateral triangle.

It should be noted that the cross-section of the elongated mold bar may be rectangular or square in addition to the equilateral triangle, and the corresponding mold bar at this time is a quadrangular prism.

Furthermore, the powerful magnet 2 is in the shape of a cuboid and one surface thereof is flush with the rectangular surface of the mold bar 1 provided with the groove.

Further, the number of the countersunk screw holes on each of the powerful magnets 2 is 2 to 4.

Further, the length of the mold bar 1 is 1.2-1.5m, and 4-12 of the powerful magnets 2 are evenly spaced on each of the mold bars 1 .

It should be noted that, as shown in Figures 3 and 4, the lower surface of the formwork corresponding to the horizontal plane of each staircase is magnetically adsorbed with the anti-slip strip mold of the present utility model and two are arranged in parallel to form an installation groove for easy installation of the anti-slip strip.

The above are only preferred embodiments of the utility model, and are not intended to limit the utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the utility model shall be included in the utility model. within the scope of protection.

Claims (6)

1. a reusable prefabricated stair anti-skid strip mould, is characterized in that, comprises the elongated mold bar (1) that is made of polytetrafluoroethylene, the middle part of the upper surface of described mold bar (1) along Its length direction is evenly spaced with a plurality of grooves, each of which is provided with a powerful magnet (2), and a number of countersunk screw holes are provided on the powerful magnet (2). There are screw holes corresponding to the countersunk screw holes one by one, and the powerful magnet (2) is fixed to the countersunk screw hole and the countersunk bolt (3) in the corresponding screw hole by thread inside the groove. 2. A reusable mold for prefabricated anti-skid strips for stairs according to claim 1, wherein the mold strip is in the shape of a triangular prism, and its upper surface is one of its three rectangular surfaces. 3. A reusable mold for prefabricated anti-skid strips for stairs according to claim 2, characterized in that the cross section of the mold strip (1) is an equilateral triangle. 4. A kind of reusable prefabricated stair anti-skid strip mold according to claim 1, is characterized in that, described powerful magnet (2) is cuboid shape and its upper surface and described mold strip (1) are provided with upper The surface is flush. 5. A kind of reusable prefabricated stair anti-skid strip mold according to claim 4, characterized in that, the number of said countersunk screw holes on each said powerful magnet (2) is 2 to 4. 6. according to a kind of reusable prefabricated stair anti-skid strip mold according to any one of claims 1 to 5, it is characterized in that, the length of the mold strip (1) is 1.2-1.5m, each said mold 4-12 said powerful magnets (2) are evenly spaced on the bar (1).